这不是一个特别 * 干净 * 的解决方案，但以下工作：

condition=A # or condition=B
jq --arg condition "$condition" '
  def maybeReorderHost:
    ( if $condition == "A" then "HOST-A" else "HOST-B" end) as $priorityPattern |
    if type != "object" then . else (
      if .RedisHost? == null then . else (
        .RedisHost |= (split(";") as $hostArr |
        [[$hostArr[] | select(index($priorityPattern) != null)],
         [$hostArr[] | select(index($priorityPattern) == null)]]
        | add | join(";") )
    ) end
  ) end;

  walk(maybeReorderHost)
' <FileA.json

我们使用split(";")将字符串拆分为数组;过滤与你想要的模式匹配的数组元素;过滤与你的模式不匹配的数组元素;然后将这两个子列表连接在一起。

如果.RedisHost的格式是固定的，你可以尝试：

this=B
jq --arg this $this\
    '(if $this == "A" then "B" else "A" end) as $that|
     (.. | select(type == "object" and has("RedisHost"))
           .RedisHost?) = "HOST-\($this);HOST-\($that)"' File1.json

我自己解决的。

# To detect the condition at the pipeline level based on the environment 

    detect=< To detect the condition to apply > # more at Pipeline

   # Defining list of host variables

    host_A=HOST-A; host_B=HOST-B

   # construct host order based on $detect 
 
    if [[ $detect =~ A ]]; then order_host="$host_A;$host_B"; elif
       [[ $detect =~ B ]] ; then 
       order_host="$host_B;$host_A" ; else 
       echo "Invalid ";
    fi

   # find the RedisHost and replace it with the constructed order_host

    jq --arg myvar "$order_host" '(..|objects|select(.RedisHost).RedisHost)|=$myvar' File1.json)"
    jq --arg myvar "$order_host" '(..|objects|select(.RedisHost).RedisHost)|=$myvar' File2.json)"